# -*- coding:utf-8 -*- 
import turtle
t = turtle.Pen()
turtle.bgcolor('black')

my_name=turtle.textinput("Input your name","")
colors=["red","yellow","purple","blue"]
for x in range(100):
    t.pencolor(colors[x%4])
    t.penup()
    t.forward(x*4)
    t.pendown()
    t.write(my_name,font=("Arial",int((x+4)/4),"bold"))
    t.left(92)
